The postcode of Houjiao, Haizhu District, Guangzhou is 510290. Haizhu District is one of the old four districts in Guangzhou City, Guangdong Province. In the south of the Pearl River in Guangzhou, it was called Jiangnan Zhou in ancient times, and Guangzhou called it &”;Henan&”;. It is located in the middle of Guangzhou City, surrounded by the waterways before and after the Guangzhou reach of the Pearl River system, and it is a natural fertile soil surrounded by water. Haizhu District, with beautiful scenery and pleasant climate, is a green island known as the &”;south lung&”; of Guangzhou. Since December 31st, 2005, Haizhu District has governed 18 administrative streets: Chigang, Xingang, Binjiang, Sushe, Haizhuang, Fengyang, Longfeng, Shayuan, Ruibao, Jianghai, Nanhuaxi, Nanshitou, Jiangnan Middle, Changgang, Nanzhou, Pazhou, Guanzhou and Huazhou.